asterisk users - Jan 2006 - Call Limit[Local, InterLocal, International, Group, Time, Duration, Etc]

Dear All,

Can someone give me some sample script to limit outgoing call based on 
their Ext to outside using pstn line ?

Let Say :

Ext 101, he just can make a call to interlocal with duration just 5 
minute and from Mon-Fri at 8AM-18PM.

Ext 102-105, they just can make a call to local only with duration and 
time same 
with above


Thanks

Rino

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Linux me !!!